diff --git a/Rakefile b/Rakefile
index 8577623..a140d0a 100644
--- a/Rakefile
+++ b/Rakefile
@@ -1,4 +1,5 @@
 require "bundler/setup"
+require "merged"
 
 load "rails/tasks/statistics.rake"
 
diff --git a/lib/merged/engine.rb b/lib/merged/engine.rb
index eaf38fd..0272b16 100644
--- a/lib/merged/engine.rb
+++ b/lib/merged/engine.rb
@@ -56,7 +56,6 @@ module ActionDispatch::Routing
           next unless page.redirects
           page.redirects.split.each do |old|
             next if old == page.name
-            puts "redirect #{old} to #{page.name}"
             get "/#{old}" => redirect("/#{page.name}")
           end
         end
diff --git a/lib/tasks/condense.rake b/lib/tasks/condense.rake
new file mode 100644
index 0000000..29c59d4
--- /dev/null
+++ b/lib/tasks/condense.rake
@@ -0,0 +1,58 @@
+module Merged
+  class Converter
+    def initialize
+      @page_mapping = linearize Page
+      @section_mapping = linearize Section
+      @card_mapping = linearize Card
+      @image_mapping = linearize Image
+    end
+    def linearize( model )
+      id_mapping = {}
+      count = 1
+      model.all.each do |m|
+        # map old to new
+        old_file = m.full_filename if model == Image
+        id_mapping[m.id] = count
+        m.id = count
+        FileUtils.mv( old_file , m.full_filename ) if model == Image
+        count = count + 1
+      end
+      id_mapping
+    end
+
+    def condense
+      fix_sections
+      fix_cards
+      [Page , Image , Section , Card].each {|m| m.save_all}
+    end
+
+    def fix_images
+
+    end
+    def fix_sections
+      Section.all.each do |section|
+        if( ! section.image_id.blank? )
+          section.image_id = @image_mapping[section.image_id]
+        end
+        section.page_id = @page_mapping[section.page_id]
+      end
+    end
+
+    def fix_cards
+      Card.all.each do |card|
+        if( ! card.image_id.blank? )
+          card.image_id = @image_mapping[card.image_id]
+        end
+        card.section_id = @section_mapping[card.section_id]
+      end
+    end
+  end
+end
+
+
+namespace :merged do
+  desc "Make ids consecutive on all models"
+  task :condense => :environment do
+    Merged::Converter.new.condense
+  end
+end
diff --git a/lib/tasks/consistency.rake b/lib/tasks/consistency.rake
new file mode 100644
index 0000000..a9b2114
--- /dev/null
+++ b/lib/tasks/consistency.rake
@@ -0,0 +1,42 @@
+require "rails"
+require "merged"
+
+namespace :merged do
+
+  desc "Check the data, usefull after hand edits"
+  task :consistency  => :environment do
+     {Section: [:image, :page] , Card: [:section , :image]}.each do |name , keys|
+      Merged.check_class(name, keys)
+    end
+    Merged.check_images
+  end
+end
+
+module Merged
+
+  def self.check_class(name , ids)
+    clazz = self.const_get name.to_s
+    clazz.all.each do |elem|
+      ids.each do |id|
+        check_id(elem , id )
+      end
+    end
+  end
+
+  def self.check_id(elem , id)
+    attr = elem.attributes["#{id}_id".to_sym]
+    return if attr.blank?
+    begin
+      key = self.const_get(id.to_s.capitalize).find( attr.to_i)
+    rescue
+      puts "#{elem.class.name.split('::').last}:#{elem.id} missing #{id}:#{attr}"
+    end
+  end
+
+  def self.check_images
+    Image.all.each do |image|
+      next if File.exist?(image.full_filename)
+      puts "missing image #{image.full_filename}"
+    end
+  end
+end
diff --git a/lib/tasks/merged_tasks.rake b/lib/tasks/merged_tasks.rake
deleted file mode 100644
index 7693645..0000000
--- a/lib/tasks/merged_tasks.rake
+++ /dev/null
@@ -1,4 +0,0 @@
-# desc "Explaining what the task does"
-# task :merged do
-#   # Task goes here
-# end